Home / 51,780.54-71,455.44-29,120.52

Finding the Fourth Proportional to 51,780.54, 71,455.44 and 29,120.52

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Solution

The fourth proportional to 51,780.54, 71,455.44 and 29,120.52 is: 40,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780.54 : 71,455.44 = 29,120.52 : x
  2. Step 2: Convert to fraction form
    51,780.54/71,455.44 = 29,120.52/x
  3. Step 3: Cross multiply
    51,780.54x = 71,455.44 × 29,120.52
  4. Step 4: Simplify right side
    51,780.54x = 2,080,819,569.63
  5. Step 5: Solve for x
    x = 2,080,819,569.63/51,780.54
  6. Step 6: Final answer
    x = 40,185.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.